On Mon, Sep 26, 2016 at 12:19:26PM -0400, Theodore Ts'o wrote: > Is this a problem with the hardware, or with the UAS driver? UAS is just SCSI transport, and doesn't touch the content of command, so it's a very unlikely culprit. The SCSI layer intreprets it, but I don't really think it's doing any of this either.. Your bridge most likely always reports 4k sectors when using UAS for some reason. To verify this call sg_readcap on the device node for both the usb-storage and uas mode. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html